2542566406 has 16 divisors (see below), whose sum is σ = 3842961408. Its totient is φ = 1261611400.

The previous prime is 2542566361. The next prime is 2542566449. The reversal of 2542566406 is 6046652452.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 156921 + ... + 172363.

It is an arithmetic number, because the mean of its divisors is an integer number (240185088).

Almost surely, 2^2542566406 is an apocalyptic number.

2542566406 is a deficient number, since it is larger than the sum of its proper divisors (1300395002).

2542566406 is a wasteful number, since it uses less digits than its factorization.

2542566406 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16067.

The product of its (nonzero) digits is 345600, while the sum is 40.

The square root of 2542566406 is about 50423.8674240681. The cubic root of 2542566406 is about 1364.8683662371.

The spelling of 2542566406 in words is "two billion, five hundred forty-two million, five hundred sixty-six thousand, four hundred six".